Vintage Vivitar Auto Thyristor 550FD camera flash unit. • Model: 550FD • Shoe-mount flash • Manual and automatic (thyristor) modes • ISO/film speed settings on rear panel • Power, ready/test, and range controls present Condition: Flash is in good cosmetic condition with light surface wear from age and storage. Buttons, switches, and dials move as they should. Testing: Untested. No batteries or camera available to fully test. Sold as-is for parts, repair, or vintage film photography use. Notes: Great piece for collectors, film camera users, or anyone restoring vintage camera gear. Please review photos for exact condition. What you see is what you’ll receive.
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